Using the equation x – 3y = -21, create a system of equations that can be easily solved using the addition method. Include the system you created, your solution methods, and your final answer.
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Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.